Insect pollinators are essential for both the production of a large proportion of world crops and the health of natural ecosystems. As important pollinators, bumblebees must learn to forage on flowers to feed both themselves and provision their colonies.Increased use of pesticides has caused concern over sublethal effects on bees, such as impacts on reproduction or learning ability. However, li...

The process of agricultural development which takes place in Argentina has led to the loss sustainability. Mixed systems could be an alternative for improving productivity and, at same time, taking into account environmental cost. sowing sunflower (Helianthus annus L.) consociated with other species can generate greater biomass some cases, yield. Such practice is about differential harnessing r...

BACKGROUND Insect pollinator abundance, in particular that of bees, has been shown to be high where there is a super-abundance of floral resources; for example in association with mass-flowering crops and also in gardens where flowering plants are often densely planted. Since land management affects pollinator numbers, it is also likely to affect the resultant pollination of plants growing in t...

A full-length mRNA that encoded a plasma membrane intrinsic protein (PIP) was isolated by electronic elongation and RT-PCR, containing an open reading frame of 861bp (GenBank HM245628), which encodes a protein of 281 amino acid residues whit a termination codon. The GmPIP included an Asn-Pro-Ala (NPA) domain and major intrinsic protein (MIP) superfamily domain, protein sequence alignment studie...

This work aimed to evaluate the symbiotic compatibility and nodulation efficiency of rhizobia isolated from Desmodium incanum, Lotus corniculatus, L. subbiflorus, L. uliginosus and L. glaber plants by cross-inoculation. Twelve reference strains and 21 native isolates of rhizobia were genetically analyzed by the BOX-PCR technique, which showed a high genetic diversity among the rhizobia studied....